PT-2026-57231

Summary Kimai 2.56.0 contains a server-side request forgery vulnerability in its invoice PDF preview and generation workflow. If an attacker can control Markdown content that is later rendered into an invoice PDF, such as Customer.invoiceText, the server-side PDF renderer will fetch remote image...

CVE-2026-9021

The Easy Invoice plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 2.1.19. This is due to the plugin registering the easyinvoiceacceptquote and easyinvoicedeclinequote AJAX actions via wpajaxnopriv hooks and relying solely on a quote-scoped nonce that i...

CVE-2026-9021

The Easy Invoice plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 2.1.19. This is due to the plugin registering the easyinvoiceacceptquote and easyinvoicedeclinequote AJAX actions via wpajaxnopriv hooks and relying solely on a quote-scoped nonce that i...

EUVD-2026-42567

The Easy Invoice plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 2.1.19. This is due to the plugin registering the easyinvoiceacceptquote and easyinvoicedeclinequote AJAX actions via wpajaxnopriv hooks and relying solely on a quote-scoped nonce that i...

CVE-2026-9021 Easy Invoice <= 2.1.19 - Unauthenticated Arbitrary Quote Accept/Decline and Invoice Creation via easy_invoice_accept_quote / easy_invoice_decline_quote AJAX Actions

The Easy Invoice plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 2.1.19. This is due to the plugin registering the easyinvoiceacceptquote and easyinvoicedeclinequote AJAX actions via wpajaxnopriv hooks and relying solely on a quote-scoped nonce that i...

CVE-2026-9021

The CVE concerns the WordPress plugin Easy Invoice (WordPress plugin) with vulnerability in versions up to 2.1.19. The root cause is Missing Authorization via AJAX actions easy_invoice_accept_quote and easy_invoice_decline_quote , registered with wp_ajax_nopriv_ hooks and relying on a quote-scope...

WordPress WooCommerce PDF Invoice Builder plugin <= 2.0.8 - Sensitive Data Exposure vulnerability

Sensitive Data Exposure vulnerability discovered by Ananda Dhakal Patchstack in WordPress Plugin WooCommerce PDF Invoice Builder versions = 2.0.8...

PYSEC-2026-1765 Peppol-py is vulnerable to XXE attacks due to Saxon configuration

Peppol-py before 1.1.1 allows XXE attacks because of the Saxon configuration. When validating XML-based invoices, the XML parser could read files from the filesystem and expose their content to a remote host...

PYSEC-2026-1580 LNbits improperly handles potential network and payment failures when using Eclair backend

Summary Paying invoices in Eclair that do not get settled within the internal timeout about 30s lead to a payment being considered failed, even though it may still be in flight. Details Using blocking: true on the API call will lead to a timeout error if a payment does not get settled in the 30s...

CVE-2026-43928

FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, the PayPalEmail payment adapter accepts PayPal IPN callbacks and credits the IPN-supplied amount mcgross to the client's balance without validating it against the invoice total. Combined with a $0.05...

CVE-2026-43928 FOSSBilling: Payment amount not validated in PayPalEmail adapter allows invoice underpayment

FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, the PayPalEmail payment adapter accepts PayPal IPN callbacks and credits the IPN-supplied amount mcgross to the client's balance without validating it against the invoice total. Combined with a $0.05...

CVE-2026-43928 FOSSBilling: Payment amount not validated in PayPalEmail adapter allows invoice underpayment

FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, the PayPalEmail payment adapter accepts PayPal IPN callbacks and credits the IPN-supplied amount mcgross to the client's balance without validating it against the invoice total. Combined with a $0.05...

CVE-2026-43928

FOSSBilling PayPalEmail integration before 0.8.0 credits mc_gross from IPN without validating against the invoice total, combined with a $0.05 epsilon in the credit logic, enabling underpayment of up to $0.04 while marking invoices as paid. Version 0.8.0 patches the issue. No public workaround ex...

CVE-2026-43928

FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, the PayPalEmail payment adapter accepts PayPal IPN callbacks and credits the IPN-supplied amount mcgross to the client's balance without validating it against the invoice total. Combined with a $0.05...

CVE-2026-42341

FOSSBilling is a free, open-source billing and client management system. Versions 0.6.0 through 0.7.2 have an unauthenticated payment bypass vulnerability in FOSSBilling's IPN callback endpoint. When the Custom payment adapter is enabled, an attacker can mark any unpaid invoice as paid and credit...

CVE-2026-42331

FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, the Guest API invoice/update endpoint is missing an authorization check present in other invoice-related endpoints, allowing an unauthenticated user with knowledge of an invoice hash to modify the...

CVE-2026-42331 FOSSBilling missing authorization in guest Invoice API endpoints

FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, the Guest API invoice/update endpoint is missing an authorization check present in other invoice-related endpoints, allowing an unauthenticated user with knowledge of an invoice hash to modify the...

CVE-2026-42331 FOSSBilling missing authorization in guest Invoice API endpoints

FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, the Guest API invoice/update endpoint is missing an authorization check present in other invoice-related endpoints, allowing an unauthenticated user with knowledge of an invoice hash to modify the...

CVE-2026-42331

FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, the Guest API invoice/update endpoint is missing an authorization check present in other invoice-related endpoints, allowing an unauthenticated user with knowledge of an invoice hash to modify the...

CVE-2026-42331

FOSSBilling before version 0.8.0 has an authorization gap in the Guest API invoice/update endpoint. An unauthenticated attacker who knows an invoice hash can modify the payment gateway associated with an unpaid invoice, potentially changing gateway_id to any gateway configured in the system. The ...